Note: This is my own interpretation based on self-study of the lecture slides. While I’ve tried to be accurate, some of my commentary and understanding may be imperfect.
Ontology
Consider the first example. KG Triples :london :location :england DL Syntax: location (london, england) Semantics <$\text{london^{I}}, \text{england^{I}}$> $\in$ $\text{location}^{I}$
| Layer | Representation | Reads as |
|---|---|---|
| Storage | :london :location :england | edge from london to england labeled location |
| Logic | location(london, england) | london and england satisfy the location relation |
| Representation | $\langle \text{london}^I, \text{england}^I \rangle \in \text{location}^I$ | In this interpretation, London-England pair belongs to location relationships |
OWL 2 Entities
classes and individuals
owl:Class is used to represent classes, which is a set of individuals. owl:NamedIndividual is used to represent individuals.
Top and Bottom Classes
Things to Add
- visualisation of OWL 2 entities